Fahrenheit to Celsius Converter: Quick and Easy Temperature Conversion

The formula

Celsius = (Fahrenheit − 32) × 5/9. The 32 shifts the freezing point (32°F = 0°C), and the 5/9 rescales the degree size, since a Fahrenheit degree is 5/9 the size of a Celsius degree. The tool runs this exact formula and rounds the output to two decimals: enter 98.6 and it returns 98.6°F = 37.00°C — normal human body temperature in both scales.

Fixed points worth knowing

Input notes

The field accepts negative numbers and decimals since (fahrenheit - 32) * 5/9 works on any real number. Leaving it blank returns "Please enter a value" instead of a calculation — there's no default temperature assumed.